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NEET2014PhysicsCurrent ElectricityActual

2,4 and 6 ~S are the conductances of three conductors. When they are joined in parallel, their equivalent conductance will be

Options

  1. A12 ~S
  2. B(1 / 12) S
  3. C(12 / 11) S
  4. D11 / 12 ~S

Correct answer

A. 12 ~S

Step-by-step solution

Here, R₁=1 / 2 , R₂=1 / 4 ; R₃=1 / 6 In parallel; 1 R_p = 1 R₁ + 1 R₂ + 1 R₃ =2+4+6=12 or equivalent conductance, G= 1 R_p =12 ~S

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